first and what turned out to be only goal for the club in a 3–1 away win over Nottingham Forest on 16 December 2006. On 30 January 2007, Guttridge left Southend to sign a permanent contract at Leyton Orient for an undisclosed fee until the end of the 2006–07 season. After rejecting a new contract offer from Leyton Orient, he left the club in May 2007. Colchester United On 5 July 2007, Guttridge joined Championship club Colchester United on a free transfer. After playing in only 14 league games during the 2007–08 season, Guttridge was released by the club following their relegation to League One. Northampton Town Guttridge impressed during a trial period at Northampton Town, and on 4 August 2008, after two commanding performances in pre-season friendlies, he signed a two-year contract with the club until the summer of 2010. His first goal for the club came during a 4–0 win over Stockport County on 21 March 2009. He was released by the club on 12 May 2010 along with five other players. Aldershot Town In July 2010, Guttridge signed a two-year contract with Aldershot Town. He was voted Supporters Player of the Season after an impressive first year with the Shots. Having made 80 appearances for Aldershot in all competitions, scoring 14 goals, Guttridge was released in January 2012 after his contract was cancelled by mutual consent. Return to Northampton On 27 January 2012, Guttridge rejoined Northampton Town on an 18-month contract until the end of the 2012–13 season. "Luke is a very experienced player and is just the sort of character we need," said Northampton manager Aidy Boothroyd. Guttridge made 44 league appearances, but was not offered a new contract and left the club in June 2013. Luton Town Guttridge signed for Conference Premier club Luton Town on a two-year contract on 5 July 2013. He was played in an advanced creative midfielder role for much of the 2013–14 season, scoring 13 goals and assisting 9 others in 32 league games, making him one of the most effective performers as Luton won the Conference Premier title and with it promotion to League Two. Guttridge's performances led his teammates to name him as the Players' Player of the Year. Guttridge played in 30 games for Luton during the 2014–15 season upon his return to the Football League, scoring four goals, and triggered a contract extension to keep him